Electromagnetic signal-controlling device.



E. B. CRAFT,

ELBGTROMAGNETIG SIGNAL GONTROLLING DEVICE.

APPLICATION FILED SERT. 10, M306.

Qi I Patented June 8, i909.

ELECTROEEAGNETE SIGNAL-CGNT I) l. (lAf'l', F CHICAGO, 'ILLINGIS ASSGNOR T0 WESTERX ELEUFUU C( OF CHICAGO, ILLINOIS. A UORPORTlON Ol" IlilllXl. il

Specification of Lamers atezrs.

` traded, bj; bridging h a full, clem, von iso, and @Xa-Ct description. l

vy invention z'olaes o an electi'onmgmfic signal-oonrolling (levicv, and has for ils ob ject to provide nl. nlvc'tronmgnvic controlli-f1' which will no diciem and reliable in operation, simple and Chmn in consti'ucfion, :md i

HTP

lA will deviibo my inwnion mow pm'tif-ui [arly by ieleemzo to tho accompanyingdrawing7 which illnsi'ais lw ixn'ol'fneil 'form lwlcol', rosoi'ving l'or i'lw appended claims a Haumont ol (he pains, improvmnens und (-omlwinationswhich l comido? noYOl wili 'm9,

in the drawing, Figui@ i ira olvvation ol' zzn 9lf^fronmw trolling nl'ic@ com "rw-tml and accordance willi my nvmiion; ionul plan visw lwi'col' in l ino E i Fig. 53 isn from View: mul 4 from rho Your.

Lilw pints ilvsigimfil ny similia? liters ol' ivi'emnce lnongliou the several@ views.

The elestionmg;

bis pro filled willi th@ i usual core ca, the and a2 wliefiem" is providcd 3 with u, lateral magnsic exension si' plate b7 L *ao the end Said exfnsion is mim- .mounted below ih@ and D o 1 preferably upon L np l1 ol the MSL said armature. being adzip'cl to i'espond to through the nmgnet, Lo @nga fe 'me plate or magnetic. extension b and e core 'to cul'i'em' in Llw nnzfgno, lo the z; miv@ loro@ of ilu portion if? ol' fh-:J @Xiong Ji. .7) wid poivfion if @tending alow lie in allol to 'i i@ zn'mnmv mounted up iig@ nlm ne signal circ s in 'lw nmnnm ol' lli@ l: i

l cla in lne com' Het, of im i vm'ren smid said zunmtme, .magnetcore, from, n second f magnet und responsive upon an incre/:.53 of current in said mngm to the al/yiacive for of said extension, and contact springs mounted upon edge alongside said magnet adapted to be operated by said second armature.

2. The combination with an electromagnet, of a magnetic extension from the core of said magnet,ymagnetically separated therefrom, an armature mounted before said core adapted to respond to current in said inagnet, a second armaturefor said magnet responsive upon an increase of current in said magnet to the attractive force of said extension, and mechanism operated by said second armature,

.3. The combination with an electromagnet, of a lateral magnetic extension from the core of said magnet, magnetically separated therefrom by a slight gap, an armature mountedbefore said core adapted to respond to current in said magnet, mechanism controlled by said armature and a second armature lying alongside `said magnet and respon- 'sive upon an increase of current in said magnet, to the attractive force of said extension.

4. The combination with an electromagnet, of a lateral magnetic extension from the core of said magnet, separated therefrom by an air-gap, a lip upon the lower portion of said extension, an armature mounted upon said lip before the inagnet'core, and responsive to current in said magnet to bridge said gap, a second armature adapted to respond upori an increase of current in said magnet to the attractive force of said extension, andmechanism operated by said armatures.

5. The combination with an electromagnet, of an L-shaped/lateral magnetic extension from one end of the core of said magnet, separated therefrom by an air-gap, an armature mounted before said core and responsive to current in said magnet to bridge said gap,

Y an L-shaped magneticextension from the other end oi said core, an armature movably mounted upon said extension and res onsive upon an increase ol current in said magnet,

to the attractive force of said first-mentioned'v extension, and mechanism operated bysaid' armature.

6. The combination with an electromagnet, of an L-sliaped lateral magnetic extension from one end of the core of said magnet, separated therefrom by an air-gap, a lip upon the lower portion of said extension, an armationed armature responding upon an increase of current in said magnet, to the attractive force of said first-mentioned extension, and contacts operated by said armature.

7. T he combination with anelectroinag- I net, of a magnetic extension from the core of said magnet, magnetically-separated therefrom, an armature mounted before said corc and responsive to current in said magnet, a

second armature for said magnet,'said arinav ture responding upon an increase of current in said magnet to the attract-ive force ci' said extension, and Contact mechanism operated by said armatures. f

S. T he combination with an electromagnet, of a plate of magnetic material secured to one end of said Aelectromagnet, said plate being cut away to receive one end of the magnct core, the space between the core and plate forming an air-gap, an armature for said magnet mounted bcl'orc the core thereof, adapted when attracted lo engage said core and plate to bridge thc air-gap, and contact mechanism operated by said armature.

9. The combination with an clectroin:ig-

Ione end of said magnet, said plate being' cui away to receive one end ol' thi` core of said magnet, the space bctu'eenthc corc and plato lormmg an annular air-gap, un armature vmounted befort` said core adapted to respond.

to current in said magnet to engage said plato and core, a second armature l'or said magnet responsive upon an increase of the current in said magnet to the attractive force of said extension, and contact mechanism operated by said armatures. v g In Witness whereof', I hereunto subscribe my name this 7th day of September A. D. 1906.

EDWARD B. CRAFT.

Witresses:

CLARENCE A. GoooiN,

Roi'. T. ALLOWAY. 

